Duncan, John Charles <br/><br/>
Astronomy  a text book 
John Charles Duncan     
 - 4th ed. 
 - New York  Harper and Brothers  1946 
 - xiii, 500p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Universal Decimal Class. No.: </label>52  / DUN